Test: Inequalities I - Challenging

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Question 1:   Solve the equation:   x 2 +6 x 2 x2 0
x 3;+
x 0;2
x 0;2 3;+
x 0;2 3;+
Question 2:   Solve the inequality:   1 x2 >1 for x>3
x 2;3
x=3
x 2;3
x
Question 3:   Solve the inequality:   x 2 4x+3 x 2 8x+7 <0
x 3;7
x 3;7
x 3;7
x 3;7
Question 4:   Solve the inequality:   1 x +3 <1
x 2;+
x
x 0;+
x 2;2
Question 5:   Solve the inequality:   x1 x+1 <x
x 1;1
x 1;+
x 1;+
x 3;2 1;+
Question 6:   Solve the inequality:   x 2 7x+12 <x
x 12 7 ;3 4;+
x 12 7 ;+
x ;3 4;+
x 12 7 ;3 4;+
Question 7:   Solve the inequality:   1 x1 < 2 x2
x 0;1 2;+
x 2;+
x 0;1 2;+
x 1;2
Question 8:   Solve the inequality:   x 2 4x5 x 2 11x+30 >0
x ;1
x ;1 6;+
x 6;+
x 1;5 6;+
Question 9:   Solve the inequality:   x 2 2x+1 x5 0
x 1;5
x ;5
x ;5
x ;1
Question 10:   Solve the inequality:   x 2 4x+2 2
x 0;4
x 1;4
x 0;4
x 0;4